221301122 has 16 divisors (see below), whose sum is σ = 379573440. Its totient is φ = 94793328.

The previous prime is 221301103. The next prime is 221301127. The reversal of 221301122 is 221103122.

It is a happy number.

221301122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 221301097 and 221301106.

It is not an unprimeable number, because it can be changed into a prime (221301127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38129 + ... + 43547.

It is an arithmetic number, because the mean of its divisors is an integer number (23723340).

Almost surely, 2^221301122 is an apocalyptic number.

221301122 is a deficient number, since it is larger than the sum of its proper divisors (158272318).

221301122 is a wasteful number, since it uses less digits than its factorization.

221301122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8345.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 221301122 is about 14876.1931286200. The cubic root of 221301122 is about 604.8688302477.

Adding to 221301122 its reverse (221103122), we get a palindrome (442404244).

The spelling of 221301122 in words is "two hundred twenty-one million, three hundred one thousand, one hundred twenty-two".